SessionAffinity(value)Type of session affinity to use. The default is NONE.
When the loadBalancingScheme is EXTERNAL: * For Network Load Balancing, the possible values are NONE, CLIENT_IP, CLIENT_IP_PROTO, or CLIENT_IP_PORT_PROTO. * For all other load balancers that use loadBalancingScheme=EXTERNAL, the possible values are NONE, CLIENT_IP, or GENERATED_COOKIE. * You can use GENERATED_COOKIE if the protocol is HTTP, HTTP2, or HTTPS.
When the loadBalancingScheme is INTERNAL, possible values are NONE, CLIENT_IP, CLIENT_IP_PROTO, or CLIENT_IP_PORT_PROTO.
When the loadBalancingScheme is INTERNAL_SELF_MANAGED, or INTERNAL_MANAGED, possible values are NONE, CLIENT_IP, GENERATED_COOKIE, HEADER_FIELD, or HTTP_COOKIE.
Not supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true.